public void ActionScope()
{
var target = new UndoRedoList <int, List <int> > {
100, 200
};
using (var scope = new UndoRedoList <int, List <int> > .ActionScope(target)) {
target.Add(300);
target.RemoveAt(0);
target.RemoveAt(1);
target.Add(400);
target.Add(500);
}
Assert.AreEqual(3, target.Count);
Assert.AreEqual(200, target[0]);
Assert.AreEqual(400, target[1]);
Assert.AreEqual(500, target[2]);
Assert.IsTrue(target.CanUndo);
Assert.IsFalse(target.CanRedo);
Assert.IsTrue(target.Undo());
Assert.IsTrue(target.CanUndo);
Assert.IsTrue(target.CanRedo);
Assert.AreEqual(2, target.Count);
Assert.AreEqual(100, target[0]);
Assert.AreEqual(200, target[1]);
Assert.IsTrue(target.Redo());
Assert.IsTrue(target.CanUndo);
Assert.IsFalse(target.CanRedo);
Assert.AreEqual(3, target.Count);
Assert.AreEqual(200, target[0]);
Assert.AreEqual(400, target[1]);
Assert.AreEqual(500, target[2]);
}
public void Undo()
{
var target = new UndoRedoList <int, List <int> >();
Assert.IsFalse(target.Undo());
target.Add(100);
Assert.IsTrue(target.CanUndo);
Assert.AreEqual(1, target.Count);
Assert.AreEqual(100, target[0]);
target.Add(200);
Assert.IsTrue(target.CanUndo);
Assert.IsFalse(target.CanRedo);
Assert.AreEqual(2, target.Count);
Assert.AreEqual(100, target[0]);
Assert.AreEqual(200, target[1]);
Assert.IsTrue(target.Undo());
Assert.IsTrue(target.CanUndo);
Assert.AreEqual(1, target.Count);
Assert.AreEqual(100, target[0]);
Assert.IsTrue(target.Undo());
Assert.IsFalse(target.CanUndo);
Assert.AreEqual(0, target.Count);
target.Add(300);
Assert.IsTrue(target.CanUndo);
target.Add(400);
target.RemoveAt(0);
Assert.IsTrue(target.CanUndo);
Assert.AreEqual(1, target.Count);
Assert.AreEqual(400, target[0]);
Assert.IsTrue(target.Undo());
Assert.IsTrue(target.CanUndo);
Assert.AreEqual(2, target.Count);
Assert.AreEqual(300, target[0]);
Assert.AreEqual(400, target[1]);
target.Add(500);
target[target.Count - 1] = 600;
Assert.AreEqual(3, target.Count);
Assert.AreEqual(600, target[target.Count - 1]);
Assert.IsTrue(target.CanUndo);
Assert.IsTrue(target.Undo());
Assert.AreEqual(3, target.Count);
Assert.AreEqual(500, target[target.Count - 1]);
target.Clear();
Assert.AreEqual(0, target.Count);
Assert.IsTrue(target.CanUndo);
Assert.IsTrue(target.Undo());
Assert.AreEqual(3, target.Count);
Assert.AreEqual(300, target[0]);
Assert.AreEqual(400, target[1]);
Assert.AreEqual(500, target[2]);
}
public void AddRemove()
{
var list = new UndoRedoList<int>();
// Add
UndoRedoManager.Start("");
list.Add(1);
UndoRedoManager.Commit();
Assert.AreEqual(1, list[0]);
Assert.AreEqual(1, list.Count);
// AddRange
UndoRedoManager.Start("");
list.AddRange(new int[] { 2, 3, 4, 5, 6});
UndoRedoManager.Commit();
Assert.AreEqual(6, list.Count);
// RemoveRange
UndoRedoManager.Start("");
list.RemoveRange(4, 2);
UndoRedoManager.Commit();
// RemoveAt
UndoRedoManager.Start("");
list.RemoveAt(0);
UndoRedoManager.Commit();
// Remove
UndoRedoManager.Start("");
list.Remove(2);
UndoRedoManager.Commit();
Assert.AreEqual(3, list[0]);
Assert.AreEqual(4, list[1]);
Assert.AreEqual(2, list.Count);
UndoRedoManager.Undo();
UndoRedoManager.Undo();
UndoRedoManager.Undo();
Assert.AreEqual(6, list.Count);
UndoRedoManager.Undo(); // undo AddRange
Assert.AreEqual(1, list.Count);
UndoRedoManager.Undo(); // undo Add
Assert.AreEqual(0, list.Count);
UndoRedoManager.Redo(); // redo Add
UndoRedoManager.Redo(); // redo AddRange
Assert.AreEqual(6, list.Count);
Assert.IsTrue(list[0] == 1 && list[1] == 2 && list[2] == 3 && list[3] == 4 && list[4] == 5 && list[5] == 6);
UndoRedoManager.Redo(); // redo RemoveRange
UndoRedoManager.Redo(); // redo RemoveAt
UndoRedoManager.Redo(); // redo Remove
Assert.AreEqual(2, list.Count);
}
public void AnotherUndoRedoList()
{
// List which support undo/redo.
var target = new UndoRedoList <int>(maximumUndoTimes: 2);
target.Add(100);
target.RemoveAt(0);
Assert.IsTrue(target.Undo());
Assert.IsTrue(target.Undo());
Assert.IsFalse(target.Undo());
Assert.IsTrue(target.Redo());
Assert.IsTrue(target.Redo());
Assert.IsFalse(target.Redo());
}
static void RemoveTest(UndoRedoList <int, List <int> > list)
{
for (var count = 1; count <= times; count++)
{
list.RemoveAt(times - count);
}
for (var count = 1; count <= times; count++)
{
list.Undo();
}
for (var count = 1; count <= times; count++)
{
list.Redo();
}
}